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Many analyses in high-energy physics rely on selection thresholds (cuts) applied to detector, particle, or event properties. Initial cut values can often be guessed from physical intuition, but cut optimization, especially for multiple…

High Energy Physics - Experiment · Physics 2025-11-12 Mike Hance , Juan Robles

In particle detectors at the Large Hadron Collider, tens of terabytes of data are produced every second from proton-proton collisions occurring at a rate of 40 megahertz. This data rate is reduced to a sustainable level by a real-time event…

Data Analysis, Statistics and Probability · Physics 2021-07-14 Ekaterina Govorkova , Ema Puljak , Thea Aarrestad , Maurizio Pierini , Kinga Anna Woźniak , Jennifer Ngadiuba

The trigger selection capabilities of the ATLAS detector have been significantly enhanced for the LHC Run- 2 in order to cope with the higher event rates and with the large number of simultaneous interactions (pile-up) per protonproton…

High Energy Physics - Experiment · Physics 2020-09-18 Pierre-Hugues Beauchemin

The ATLAS experiment at the Large Hadron Collider has a broad physics programme ranging from precision measurements to direct searches for new particles and new interactions, requiring ever larger and ever more accurate datasets of…

High Energy Physics - Experiment · Physics 2024-11-25 ATLAS Collaboration

Data processing is one of the fundamental steps in machine learning pipelines to ensure data quality. Majority of the applications consider the user-defined function (UDF) design pattern for data processing in databases. Although the UDF…

Databases · Computer Science 2023-12-29 Luyi Ma , Nikhil Thakurdesai , Jiao Chen , Jianpeng Xu , Evren Korpeoglu , Sushant Kumar , Kannan Achan

The version 3.0 of the DELPHES fast-simulation is presented. The goal of DELPHES is to allow the simulation of a multipurpose detector for phenomenological studies. The simulation includes a track propagation system embedded in a magnetic…

High Energy Physics - Experiment · Physics 2014-03-24 J. de Favereau , C. Delaere , P. Demin , A. Giammanco , V. Lemaître , A. Mertens , M. Selvaggi

ATLAS, a general-purpose experiment at the Large Hadron Collider (LHC), makes use of a large internationally-distributed computing infrastructure, including over $10^6$ TB of managed data on disk and tape and almost one million…

High Energy Physics - Experiment · Physics 2026-04-16 ATLAS Collaboration

Slicing is a program analysis technique originally developed for imperative languages. It facilitates understanding of data flow and debugging. This paper discusses slicing of Constraint Logic Programs. Constraint Logic Programming (CLP) is…

Software Engineering · Computer Science 2007-05-23 Gyongyi Szilagyi , Tibor Gyimothy , Jan Maluszynski

The LHCb Stripping project is a pivotal component of the experiment's data processing framework, designed to refine vast volumes of collision data into manageable samples for offline analysis. It ensures the re-analysis of Runs 1 and 2…

High Energy Physics - Experiment · Physics 2025-12-19 Nathan Grieser , Eduardo Rodrigues , Niladri Sahoo , Shuqi Sheng , Nicole Skidmore , Mark Smith

We introduce cilantro, an open-source C++ library for geometric and general-purpose point cloud data processing. The library provides functionality that covers low-level point cloud operations, spatial reasoning, various methods for point…

Computer Vision and Pattern Recognition · Computer Science 2018-11-19 Konstantinos Zampogiannis , Cornelia Fermuller , Yiannis Aloimonos

We present a novel technique for the analysis of proton-proton collision events from the ATLAS and CMS experiments at the Large Hadron Collider. For a given final state and choice of kinematic variables, we build a graph network in which…

High Energy Physics - Phenomenology · Physics 2021-02-25 Anna Mullin , Stuart Nicholls , Holly Pacey , Michael Parker , Martin White , Sarah Williams

Businesses and software platforms are increasingly turning to Large Language Models (LLMs) such as GPT-3.5, GPT-4, GLM-3, and LLaMa-2 for chat assistance with file access or as reasoning agents for customer service. However, current…

Computation and Language · Computer Science 2024-07-18 Jingzhe Shi , Jialuo Li , Qinwei Ma , Zaiwen Yang , Huan Ma , Lei Li

FPGAs are well-suited for dataflow architectures that process data in a streaming or pipelined manner, thus satisfying the high computational and communication demands of emerging applications. However, manually implementing an efficient…

Hardware Architecture · Computer Science 2026-04-15 Weichuang Zhang , Yiquan Wang , Xinzhou Zhang , Chi Zhang , Yu Feng , Xiaofeng Hou , Chao Li , Jieru Zhao , Minyi Guo

With the current increase in the data produced by the Large Hadron Collider (LHC) at CERN, it becomes important to process this data in a corresponding manner. To begin with, to efficiently select events that contain relevant information…

Hardware Architecture · Computer Science 2022-12-09 Natalia Cherezova , Dmitri Mihhailov , Sergei Devadze , Artur Jutman

Recent improvements in large language models have opened new opportunities for accelerating and automating scientific workflows. In parallel, modern collider analyses are becoming increasingly complex and demand substantial programming and…

High Energy Physics - Phenomenology · Physics 2026-02-09 W. Esmail , A. Hammad , M. Nojiri

Massively parallel computing at the LHC could be the next leap necessary to reach an era of new discoveries at the LHC after the Higgs discovery. Scientific computing is a critical component of the LHC experiment, including operation,…

Computational Physics · Physics 2014-02-05 V. Halyo , P. LeGresley , P. Lujan

This paper was prepared by the HEP Software Foundation (HSF) PyHEP Working Group as input to the second phase of the LHCC review of High-Luminosity LHC (HL-LHC) computing, which took place in November, 2021. It describes the adoption of…

Data Analysis, Statistics and Probability · Physics 2022-02-09 Jim Pivarski , Eduardo Rodrigues , Kevin Pedro , Oksana Shadura , Benjamin Krikler , Graeme A. Stewart

Data analysis is a crucial analytical process to generate in-depth studies and conclusive insights to comprehensively answer a given user query for tabular data. In this work, we aim to propose new resources and benchmarks to inspire future…

Computation and Language · Computer Science 2024-10-30 Xueqing Wu , Rui Zheng , Jingzhen Sha , Te-Lin Wu , Hanyu Zhou , Mohan Tang , Kai-Wei Chang , Nanyun Peng , Haoran Huang

Software development in high energy physics experiments offers unique experience with rapidly changing environment and variety of different standards and frameworks that software must be adapted to. As such, regular methods of software…

High Energy Physics - Phenomenology · Physics 2010-09-21 Tomasz Przedzinski

From particle identification to the discovery of the Higgs boson, deep learning algorithms have become an increasingly important tool for data analysis at the Large Hadron Collider (LHC). We present an innovative end-to-end deep learning…